Quill with small caliber tubing inserted therein



l. B. HILL Jan. e, 1942.

QUILL WITH SMALL CALIBER TUBING INSERTED THEREIN F'led Aug. 3. 1 940Patented Jan. 6, 1942 25ans QUILL WITH SMALL CALIBER TUBING INSERTEDTHEREIN Ira B. Hill, Kent, Ohio, assignor to Borg-Warner Corporation,Chicago, Ill., a corporation of Illinois Application August 3, 1940,ISerial No. 350,548 4 Claims. (Cl. 140-36) This invention relates to wireweaving machines and more particularly to Wire quill assemblies for suchmachines.

It is an object of this invention to provide a Wire quill assemblyincorporating improvements j sion of an improved guide for conductingthe.

warp wire from the rear end to the forward end of a wire quill having adriving gear embracing the same between the ends thereof.

Still another object is the provision of a novel method of fabricating ametal quill having the above qualifications.

OtherV and more specic objects,.advantages and uses of my invention willbecome apparent from a reading of the following specification taken inconnection with the appended drawing which forms a part thereof andwherein:

Fig. 1 is a broken away section view of the essential parts of a weavingmachine incorporating a quill assembly representing a preferredembodiment of my invention;

Fig. 2 is a view of the quill assembly taken substantially on the line2-2 of Fig. 1 with the surrounding parts of the machine removed andshowing to advantage the arrangement of the small caliber guide tubinginstalled in the quill.

Referring rst generally to Fig. 1, I have illustrated the essentialelements of a Wire fabric weaving head assembly of which the presentinvention is particularly adapted to form a part. This assembly isindicated generally at I and comprises my novel quill assembly II'cooperating with a comb assembly I2 for producing a particular form ofwire fabric indicated generally at I3.

With general reference only to the operation of this weaving head Ill inthe production of a piece of fabric, a pair of warp wires I4 are fedalong my novel guide arrangement indicated generally at I5 and extendingfrom the inlet lend of quill I6 to the discharge or twisting end Ilthereof. Quill I6 is provided intermediate the ends thereof with a gearI8, this gear being rotated by means of a reciprocating rack forproducing with the cooperation of comb assembly I2 integrating twist 2|between the warp wires I4 for the purpose of locking in place the flapor ribbon-like filler wires 22.

From the above it will be appreciated that if the integrating twists 2|are to be evenly and otherwise properly formed it is necessary toprovide an eicient guide means for conducting the warp wires III fromthe rear end of the quill to the forward discharge or twisting end I'Ithereof. I have observed from experience that in the absence of thenecessary guiding means the warp wires are unevenly and improperly fedalong the quill resulting in an irregular fabric having objectionableoptical characteristics. fabric is intended for use as window screenthese objectionable optical characteristics render the sameunsatisfactory for this purpose.

The present invention is directed particularly to the novel arrangementof guide means I5 for efficiently guiding the warp Wires I 4 from theinlet ends of the quill I6 to the discharge or twisting ends |"Ithereof, no further description of the weaving machine proper beingdeemed necessary to an appreciation of the present inventionparticularly since reference may be had to copending applications ofEwing Serial No. 239,240, now Patent No. 2,223,317, and Heinze SerialNo. 239,257 filed November 7, 1938, now Patent No. 2,214,054.

My novel guide arrangement indicated generally at I5 comprisesessentially a pair of small caliber tubes 25 extending from one end ofthe quill I6 to the other and adapted to receive the warp wires forpassage therethrough. The arrangement is particularly characterized bythe fact that tubes 25 are positioned below the periphery of the quillI6 in channels Aor passages 26 formed for their reception. Tubes 25 passthrough the central portion of gear I8 inwardly of the gear teeth. It isof particular importance to note that channels 26 enter the forward noseII of quill I6 at opposite ends of that diameter on which theWedge-shaped extremity of nose I'I lies and extends in a spiral-likepath along the periphery of the quill to points of discharge at theopposite ends of a second diameter positioned ninety degrees withreference to the first mentioned diameter. This arrangement has beenfound to have particular advantages both in fabrication and in resultingoperation of the assembly. 'Y

Tubes 25 are preferably, though not necessarily, of metal and in certaininstances may be that tubing known commercially as hypodermic tubing.

A preferred method of fabricating the present assembly shown in thedrawing comprises first providing a cylindrical quill body I6 withchannels 26 in the periphery thereof. Next installing Where the thesmall bore metal tubing 25 preferably by the technique commonly known assweating This involves placing the tubing in the channel 26 and xing thesame therein by melting thereabout as with a soldering iron, a limitedquantity of a solder or metal indicated generally at 21 having a highermelting point than the melting point of either the metal of the quillbody or that of the tube being installed. Following this operation thegear I8 is pressed on to the quill body and fastened thereto as by pinI9.

It will of course be understood that while the above is believed topresent a novel and advantageous method of providing the present quillassembly, the same may be fabricated in other ways coming within thebroader scope of my invention. For example, the quill body IS and gearI8 may be fabricated from a single piece of stock, the channels 26 inthe peripheliir of the quill periphery communicating with passagesformed through the central portion of the quill body.

The warp wires I4 may be supplied to the quill from any suitable sourcesuch as supply spools (not shown) being led to the rear* ends of theguides l5 through a tensioning assembly indicated generally at 30, thedetails of which are covered in a separate co-pending application SerialNo. 350,549, filed August 3, 1940.

While I have disclosed my invention in connection with certain specificembodiments thereof, I contemplate other equivalent arrangements anddesire that the above be considered by way of example rather than by wayof limitation and that my invention be dened by the appended claimswhich should be given a scope as broad as permitted by the prior art.

I claim:

l. In a weaving machine warp wire feeding quill assembly including agenerally cylindrical body, a gear embracing said body intermediate theends thereof, said body being formed with a recessed channel in theperiphery thereof, said channel extending generally axially along saidbody, said gear being formed with a passage generally centrally locatedwith respect to the teeth of said gear, said passage merging with saidchannel, and tubing having va caliber of the order of the diameter ofsaid warp wire installed in said channel and passage and functioning asa guide for conducting said wire `between the `ends of said quill.

2. In a weaving machine rotatable quill assembly for feeding a pair ofwarp wires and twisting the same together adjacent the forward end ofsaid quill with a predetermined tightness, a generallycylindrical-shaped quill having a gear intermediate the ends thereof forrotating the same, said quill being formed along the periphery thereofwith a pair of generally diametrically opposed channels extendinggenerally axially from the input end to the twisting end of said quill,said gear being formed with a pair of passages generally centrally withrespect to the teeth of said gear and in communication with saidchannels, a pair of metal tubes having a caliber corresponding to thediameter of said warp wires received within said channels and passagesfor conducting said warp wires from the input end of said quill to thetwisting end thereof.

r 3. In a weaving machine, a wire feeding quill assembly including agenerally cylindrical quill, said quill being formed with a pair ofopposed channels extending in a hexical-like path between the two endsof said quill, said channels beginning at one end of said shaft onopposite ends of a first diameter and terminating at the opposite endsof a second diameter at the discharge end of said quill, said last nameddiameter being disposed at an angle of approximately 45 to said firstnamed diameter, and small tubing of a caliber corresponding to said Wirereceived in each of said channels for conducting the wires between theends of said quill.

4. In a wire screen weaving machine rotatable quill assembly for feedingand twisting together a pair of warp wires adjacent the forward end ofsaid quill, said assembly including a generally cylindrically shapedelongated body, a driving gear intermediate the ends of said body havinga pitch diameter greater than the diameter of said body, .a pair ofgenerally parallel diametrically opposed .channels extending generallyaxially along said body 'from the rear inlet end thereof and centrallywithin said gear to the discharge twisting end of .said body, a pair ofmetal tubes having a caliber corresponding to the diameter of said warpwires received within said channels and functioning to conductsaid warpwires from the inlet end of said body to the twisting end thereof.

IRA B.

